該基因編碼reca/rad51相關蛋白家族的一個成員，參與同源重組以維持染色體穩定性和修復dna損傷。該基因通過同源重組參與dna雙鏈斷裂的修復，并在功能上與中國倉鼠irs1互補，irs1是一種修復缺陷突變體，對多種不同的dna損傷劑表現出超敏反應。
This gene encodes a member of the RecA/Rad51-related protein family that participates in homologous recombination to maintain chromosome stability and repair DNA damage. This gene is involved in the repair of DNA double-strand breaks by homologous recombination and it functionally complements Chinese hamster irs1, a repair-deficient mutant that exhibits hypersensitivity to a number of different DNA-damaging agents. [