This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is glycerol:NAD+ 2-oxidoreductase. Other names in common use include glycerin dehydrogenase, and NAD+-linked glycerol dehydrogenase. This enzyme participates in glycerolipid metabolism.
As of late 2007, 4 structures have been solved for this class of enzymes, with PDB accession codes , , , , and .