Predicted to enable ATP-dependent activity, acting on DNA; double-stranded DNA binding activity; and single-stranded DNA binding activity. Predicted to contribute to four-way junction DNA binding activity. Predicted to be involved in double-strand break repair via homologous recombination and positive regulation of G2/M transition of mitotic cell cycle. Predicted to act upstream of or within blastocyst growth; positive regulation of cell population proliferation; and somite development. Predicted to be located in replication fork. Predicted to be part of Rad51B-Rad51C-Rad51D-XRCC2 complex. Orthologous to human RAD51B (RAD51 paralog B). [provided by Alliance of Genome Resources, Apr 2022]