这个基因编码ras超家族的一个成员该基因是与生长抑制相关的父系等位基因的单等位基因表达的印记基因。编码的蛋白质作为一种肿瘤抑制因子，其功能在许多卵巢癌和乳腺癌中被取消这种蛋白也可能通过调节自噬体起始复合物在某些癌细胞中发挥自噬作用[由RefSeq提供，2015年11月]
This gene encodes a member of the ras superfamily. This gene is imprinted gene with monoallelic expression of the paternal allele which is associated with growth suppression. The encoded protein acts as a tumor suppressor whose function is abrogated in many ovarian and breast cancers. This protein may also play a role autophagy in certain cancer cells by regulating the autophagosome initiation complex. [provided by RefSeq, Nov 2015]