Enables several functions, including PDZ domain binding activity; anaphase-promoting complex binding activity; and phosphatase activity. Involved in several processes, including dephosphorylation; negative regulation of cell migration; and regulation of protein metabolic process. Located in several cellular components, including apical plasma membrane; cytoplasmic side of plasma membrane; and nucleoplasm. Implicated in several diseases, including PTEN hamartoma tumor syndrome (multiple); breast cancer (multiple); macrocephaly-autism syndrome; nervous system cancer (multiple); and reproductive organ cancer (multiple). Biomarker of several diseases, including coronary artery disease (multiple); gastrointestinal system cancer (multiple); in situ carcinoma (multiple); reproductive organ cancer (multiple); and urinary system cancer (multiple).