Beta-alanopine dehydrogenase () is an enzyme that catalyzes the chemical reaction
The three substrates of this enzyme are (R)-ò-alanopine, oxidised nicotinamide adenine dinucleotide (NAD<sup>+</sup>), and water. Its products are ò-alanine, reduced NADH, pyruvic acid and a proton. ò-alanopine is a type of opine.
This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-NH group of donors with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is N-(D-1-carboxyethyl)-beta-alanine:NAD+ oxidoreductase (beta-alanine-forming).