該基因編碼的蛋白是一種GTP酶，屬于小GTP結合蛋白的ras超家族。這個超家族的成員似乎調節著各種各樣的細胞事件，包括控制細胞生長、細胞骨架重組和蛋白激酶的激活。兩個編碼不同亞型的轉錄變體已經被發現。
The protein encoded by this gene is a GTPase which belongs to the RAS superfamily of small GTP-binding proteins. Members of this superfamily appear to regulate a diverse array of cellular events, including the control of cell growth, cytoskeletal reorganization, and the activation of protein kinases. Two transcript variants encoding different isoforms have been found for this gene.