Predicted to enable phosphatidylinositol-3,5-bisphosphate 3-phosphatase activity; phosphatidylinositol-3-phosphatase activity; and protein phosphatase binding activity. Predicted to be involved in phosphatidylinositol dephosphorylation; regulation of autophagy; and regulation of phosphatidylinositol dephosphorylation. Predicted to be located in endosome. Predicted to be active in cytoplasm and membrane. Is expressed in central nervous system; embryo; retina inner nuclear layer; and retina outer nuclear layer. Orthologous to human MTMR4 (myotubularin related protein 4). [provided by Alliance of Genome Resources, Apr 2022]