The function of Ensembl gene identifier ENSG00000036473 (OTC, ornithine transcarbamylase) is as follows. Catalyzes the second step of the urea cycle, the condensation of carbamoyl phosphate with L-ornithine to form L-citrulline (PubMed:2556444, PubMed:6372096, PubMed:8112735). The urea cycle ensures the detoxification of ammonia by converting it to urea for excretion (PubMed:2556444). {ECO:0000269|PubMed:2556444, ECO:0000269|PubMed:6372096, ECO:0000269|PubMed:8112735}.