Predicted to enable phosphatidylinositol 3-kinase regulatory subunit binding activity and protein tyrosine phosphatase activity. Predicted to be involved in negative regulation of protein phosphorylation; peptidyl-tyrosine dephosphorylation; and regulation of phosphatidylinositol 3-kinase signaling. Located in cell body and neuron projection. Orthologous to human PTPN13 (protein tyrosine phosphatase non-receptor type 13). [provided by Alliance of Genome Resources, Apr 2022]