该基因编码一种蛋白质，该蛋白质与甲基磺酸盐敏感的紫外敏感81蛋白复合形成一种核酸内切酶复合物。编码蛋白与特定的dna结构相互作用，包括有缺口的holliday连接、3'-瓣结构和异常的复制叉结构。这种蛋白可能参与修复dna损伤和维持基因组稳定性。选择性剪接导致多个转录变体。[由RefSeq提供，2009年10月]
This gene encodes a protein that complexes with methyl methanesulfonate-sensitive UV-sensitive 81 protein to form an endonuclease complex. The encoded protein interacts with specifc DNA structures including nicked Holliday junctions, 3'-flap structures and aberrant replication fork structures. This protein may be involved in repairing DNA damage and in maintaining genomic stability. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Oct 2009]