Enables enzyme regulator activity. Predicted to be involved in several processes, including phosphatidylinositol dephosphorylation; protein stabilization; and regulation of dephosphorylation. Predicted to act upstream of or within endocytosis. Predicted to be located in cytosol. Predicted to be part of protein-containing complex. Predicted to be active in cytoplasm and membrane. Is expressed in cranial ganglion; dorsal root ganglion; and trigeminal nerve. Orthologous to human MTMR9 (myotubularin related protein 9). [provided by Alliance of Genome Resources, Apr 2022]