Carboxypeptidase that may play an important role in the hydrolysis of circulating peptides. Catalyzes the hydrolysis of dipeptides with unsubstituted terminals into amino acids. May play a role in the liberation of thyroxine hormone from its thyroglobulin (Tg) precursor (By similarity).
Subcellular locations: Endoplasmic reticulum, Golgi apparatus, Lysosome, Secreted
Secretion is stimulated by TSH/thyroid-stimulating hormone, INS/insulin and SST/somatostatin.