DNA repair protein RAD51 homolog 4 (RAD51D)

Involved in the homologous recombination repair (HRR) pathway of double-stranded DNA breaks arising during DNA replication or induced by DNA-damaging agents. Bind to single- stranded DNA (ssDNA) and has DNA-dependent ATPase activity.

Part of this Rad21 paralog protein complex BCDX2 which acts from the BRCA1-BRCA2-dependent HR pathway. Upon DNA damage, BCDX2 acts downstream of BRCA2 recruiting and upstream of RAD51 recruitment.