Component of the SWI5-SFR1 complex, a complex required for double-strand break repair via homologous recombination. Acts as a transcriptional modulator for ESR1. Component of the SWI5-SFR1 complex. Interacts with RAD51; the interaction is weak (By similarity). Interacts with ESR1 in a ligand-independent and ligand-dependent manner (By similarity). Belongs to the SFR1/MEI5 family.