该基因编码一个信号诱导增殖相关的1型家族成员。这个家族的成员包含一个GTPase激活域、一个PDZ域和一个带亮氨酸拉链的C-末端卷曲线圈域。在大鼠体内有一种类似的蛋白质作为小gtpase rap的gtpase。[由RefSeq提供，2015年9月]
This gene encodes a member of the signal-induced proliferation-associated 1 like family. Members of this family contain a GTPase activating domain, a PDZ domain and a C-terminal coiled-coil domain with a leucine zipper. A similar protein in rat acts as a GTPases for the small GTPase Rap. [provided by RefSeq, Sep 2015]