Frament began the demanding tasks of Atlanticconvoy escort on 19 October 1943, when she sailed from New York to escort tankers to Curaçao and thence to Derry, Northern Ireland. Sailing out of New York, and occasionally Boston, she escorted six convoys to Northern Ireland, one to Cherbourg, France, and one to Gibraltar, in the period from 15 December 1943 to 3 December 1944.
After a hasty decommissioning,[2]Frament began conversion to a high-speed transport; she was reclassified APD-77 on 15 December 1944.
After training on both coasts, Frament arrived at Pearl Harbor on 3 April 1945 for duty training with underwater demolition teams in the Hawaiian Islands. Convoy escort duty took her to Eniwetok, Ulithi, and Leyte in May, and on the 29th she arrived at Okinawa, where she joined the outer patrol screen guarding the great number of ships off the island.
Assigned to rescue duty in June, she proved herself on the 10th, when she and several smaller craft saved every man of William D. Porter (DD-579), when that destroyer was sunk by a suicide plane. Returning to the Philippines at the close of July, Frament trained for the planned invasion of the Japanese home islands, and at the close of the war, took up duty with minesweepers operating in the Yellow Sea. She served on occupation duty until 1 January 1946, when she sailed from Shanghai for the east coast. On 30 May 1946 Frament was placed out of commission in reserve at Green Cove Springs, Florida.
Stricken from the Navy Register on 1 June 1960, the former Frament was transferred to Ecuador in July 1961 for use as a power hulk.