May be related to cancer progression or tumor metastasis in a variety of organ sites, most likely through an interaction with the actin cytoskeleton. Binds to actin. Binds to the cytoplasmic domain of receptor protein tyrosine phosphatase delta. Expressed in many tissues, including spleen, thymus, prostate, testis, uterus, colon, and peripheral blood. The WH2 motif at the C-terminus binds to actin monomers. Belongs to the MTSS family.