Probable protein tyrosine phosphatase. Has phosphatase activity with synthetic substrates (PubMed:15252030, PubMed:29106959). Has a phosphatase activity-independent regulatory role in MAP3K5/ASK1- mediated apoptosis, preventing MAP3K5/ASK1 inhibition by AKT1. Shows no phosphatase activity on MAPK1/ERK2, MAPK8/JNK, MAPK14/p38 and MAP3K5/ASK1. {ECO:0000269|PubMed:15252030, ECO:0000269|PubMed:20358250, ECO:0000269|PubMed:29106959}. This is the function of ENSG00000293543 (DUSP13A, dual specificity phosphatase 13A).