He served as Mufti through the entire Communist era in his country, between 31 December 1947[3] and 1990, being preceded by Mitat Rifat and succeeded by Ablakim Ibrahim.[4] As head of the Muslim Cult, he was placed by Securitate under secret surveillance in operation "The Sultan" under allegations of insulting USSR and attempting to establish in 1950 a Muslim World Peace Organization.[2]
He had a good acquaintance with the Romanian culture and became one of Romania's important speakers on the international scene,[6] a non official "ambassador" during his visits in Arab and Muslim countries. [7] He thought that "Israel and the Arabs must come together and talk peace directly."[1]
In 1990, when the editors of Renkler Journal in Bucharest led by historian Tahsin Gemil created the Tatar movement based on ideas of cultural and linguistic uniformity, Mehmet Yakub opposed this project creating a movement with cultural diversity conservation views activating under the motto Tek niyet, mútenevviyet ("Unity in diversity").[8]
Yakub died in 1991, in Constanța. His body is near his wife, Zeyneb, in Constanța Muslim Central Cemetery at: 44.173046, 28.622309.
Gabor, Adrian; Mureşan, Radu Petre (2006). Biserica Ortodoxă în Uniunea Europeană, Contribuţii necesare la securitatea şi stabilitatea europeană (in Romanian). Universitatea din București, Facultatea de Teologie Ortodoxă "Patriarhul Justinian", Editura Universităţii din Bucuresti. pp. 86, 89.
Iusuf, Murat (18 February 2009). "Muftiul buclucas". murat-iusuf.blogspot.ro (in Romanian). Retrieved 16 September 2014.
Yuan, Changming (2015). "5 Poems by Taner Murat". Poetry Pacific. 4.1 (Spring 2015). Retrieved 5 May 2015.
Florescu, Ion (1975). Prezenţe musulmane în România/Muslims in Romania. Past and Present. With a Preface by Iacub Mehmet, Mufti of the Muslim Cult in the Socialist Republic of Romania (in Romanian). Bucharest: Meridiane.