Dihydroorotase

**Definition:** An enzyme that, in the course of pyrimidine biosynthesis, catalyzes ring closure by removal of water from N-carbamoylaspartate to yield dihydro-orotic acid. EC 3.5.2.3.

**Tree numbers:** - D08.811.277.087.280

**Synonyms:** - Carbamoylaspartic Dehydrase - Dihydro-Orotase - Dihydro-Orotate Amidohydrolase