What is "enamidase"

In enzymology, an enamidase is an enzyme that catalyzes the chemical reaction

6-oxo-1,4,5,6-tetrahydronicotinate + 2 HO $\rightleftharpoons$ 2-formylglutarate + NH

Thus, the two substrates of this enzyme are 6-oxo-1,4,5,6-tetrahydronicotinate and HO, whereas its two products are 2-formylglutarate and NH.

This enzyme belongs to the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in cyclic amides. The systematic name of this enzyme class is 6-oxo-1,4,5,6-tetrahydronicotinate amidohydrolase.