Dual specificity protein phosphatase which dephosphorylates both phosphotyrosine and phosphoserine residues. H2O + O-phospho-L-tyrosyl-[protein] = L-tyrosyl-[protein] + phosphate H2O + O-phospho-L-seryl-[protein] = L-seryl-[protein] + phosphate Binds 2 Zn(2+) ions. Interacts with PES. Localizes to the cytoplasm at the ring stage, translocates to the nucleus in the trophozoite stage and returns to the cytoplasm at the schizont stage. Expressed during the parasite blood stage, including in rings, trophozoites and schizonts (at protein level) (PubMed:14698441). Expressed in gametocytes (at protein level) (PubMed:14698441). Belongs to the protein-tyrosine phosphatase family. Non-receptor class dual specificity subfamily.