Breymaier has since been serving on the Committee on Family Affairs, Senior Citizens, Women and Youth, where she is her parliamentary group's rapporteur on demographic transition, pensions, and forced prostitution.[1] In 2019, she initiated a cross-party working group in support of a ban on prostitution.[3]
Since the 2021 elections, Breymaier has been serving as her parliamentary group’s spokesperson for family affairs, senior citizens, women and youth.[4] Since 2022, she has also been serving on the parliamentary body in charge of appointing judges to the Highest Courts of Justice, namely the Federal Court of Justice (BGH), the Federal Administrative Court (BVerwG), the Federal Fiscal Court (BFH), the Federal Labour Court (BAG), and the Federal Social Court (BSG).[5] That same year, she joined the Commission for the Reform of the Electoral Law and the Modernization of Parliamentary Work, co-chaired by Johannes Fechner and Nina Warken.[6]
In addition to her committee assignments, Breymaier is a member of the German-Israeli Parliamentary Friendship Group. Within the SPD parliamentary group, she belongs to the Parliamentary Left, a left-wing movement.[7]