The function of Ensembl gene identifier ENSG00000092529 (CAPN3, calpain 3) is as follows. Calcium-regulated non-lysosomal thiol-protease. Proteolytically cleaves CTBP1 at 'His-409'. Mediates, with UTP25, the proteasome-independent degradation of p53/TP53 (PubMed:23357851, PubMed:27657329). {ECO:0000269|PubMed:23357851, ECO:0000269|PubMed:23707407, ECO:0000269|PubMed:27657329}.