Involved in DNA double-strand break (DSB) repair and recombination. Promotes the annealing of complementary single-stranded DNA and by stimulation of the RAD51 recombinase. Part of a complex that includes RAD51, RAD52 and RAD59. Interacts with SAW1. Present with 1080 molecules/cell in log phase SD medium. Produced by alternative initiation at Met-5 of isoform 1. Produced by alternative initiation at Met-7 of isoform 1. Belongs to the RAD52 family. Extended N-terminus. Extended N-terminus. Extended N-terminus.