[5][6][7] This gene encodes an enzyme involved in pyrimidine salvaging.

The encoded protein forms a homotetramer that catalyzes the irreversible hydrolytic deamination of cytidine and deoxycytidine to uridine and deoxyuridine, respectively.

It is one of several deaminases responsible for maintaining the cellular pyrimidine pool.

[8] A related activation-induced (cytidine) deaminase (AID) regulates antibody diversification, especially the process of somatic hypermutation.

Click on genes, proteins and metabolites below to link to respective articles.