Predicted to enable non-membrane spanning protein tyrosine phosphatase activity. Predicted to be involved in peptidyl-tyrosine dephosphorylation. Predicted to act upstream of or within blastocyst formation. Predicted to be active in cytoplasm and nucleus. Orthologous to human PTPN18 (protein tyrosine phosphatase non-receptor type 18). [provided by Alliance of Genome Resources, Apr 2022]