Enables MAP kinase tyrosine/serine/threonine phosphatase activity and protein tyrosine/threonine phosphatase activity. Involved in protein dephosphorylation. Predicted to be located in nucleoplasm. Predicted to be active in cytoplasm and nucleus. Orthologous to human DUSP4 (dual specificity phosphatase 4). [provided by Alliance of Genome Resources, Apr 2022]