該基因編碼的蛋白質與ERCC1形成復合物，參與核苷酸切除修復過程中的5'切口。該復合物是一種與EME1相互作用的結構特異性DNA修復內切酶。該基因缺陷是著色性干皮病互補組F（xp-f）或著色性干皮病VI（xp6）的原因。[由Refseq提供，2009年3月]
The protein encoded by this gene forms a complex with ERCC1 and is involved in the 5' incision made during nucleotide excision repair. This complex is a structure specific DNA repair endonuclease that interacts with EME1. Defects in this gene are a cause of xeroderma pigmentosum complementation group F (XP-F), or xeroderma pigmentosum VI (XP6).[provided by RefSeq, Mar 2009]