May play a role in cell cycle regulation. Dual specificity CC phosphatase active toward substrates containing either phosphotyrosine or phosphoserine residues (PubMed:8127873, PubMed:8242750). Dephosphorylates CDK2 at 'Thr-160' in a cyclin-dependent manner (PubMed:7569954). {ECO:0000269|PubMed:7569954, ECO:0000269|PubMed:8127873, ECO:0000269|PubMed:8242750}. This is the function of Ensembl gene identifier ENSG00000100526 (CDKN3, cyclin dependent kinase inhibitor 3).