In enzymology, a 5-aminopentanamidase () is an enzyme that catalyzes the chemical reaction 5-aminopentanamide + H2O 5-aminopentanoate + NH3 Thus, the two substrates of this enzyme are 5-aminopentanamide and H2O, whereas its two products are 5-aminopentanoate and NH3. This enzyme belongs to the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in linear amides. The systematic name of this enzyme class is 5-aminopentanamide amidohydrolase. Other names in common use include 5-aminovaleramidase, and 5-aminonorvaleramidase. This enzyme participates in lysine degradation. References EC 3.5.1 Enzymes of unknown structure