這個基因編碼蛋白酪氨酸磷酸酶家族的一個成員。蛋白酪氨酸磷酸酶是在多種細胞過程中起調節作用的細胞信號分子。這類蛋白酪氨酸磷酸酶在小鼠體內的研究表明，它們在體內是預酰化的，這表明它們與細胞質膜有關。編碼蛋白可促進細胞增殖，該基因的過度表達與腫瘤轉移有關。選擇性剪接導致多個轉錄變體。
This gene encodes a member of the protein-tyrosine phosphatase family. Protein tyrosine phosphatases are cell signaling molecules that play regulatory roles in a variety of cellular processes. Studies of this class of protein tyrosine phosphatase in mice demonstrates that they are prenylated in vivo, suggesting their association with cell plasma membrane. The encoded protein may enhance cell proliferation, and overexpression of this gene has been implicated in tumor metastasis. Alternative splicing results in multiple transcript variants.