The enzyme protein-glucosylgalactosylhydroxylysine glucosidase () catalyzes the following chemical reaction:
It belongs to the family of hydrolases, specifically those glycosidases that hydrolyse O- and S-glycosyl compounds. The systematic name is protein-ñ-D-glucosyl-1,2-ò-<small>D</small>-galactosyl-<small>L</small>-hydroxylysine glucohydrolase. Other names in common use include 2-O-ñ-<small>D</small>-glucopyranosyl-5-O-ñ-D-galactopyranosylhydroxy-<small>L</small>-lysine glucohydrolase, and lysine glucohydrolase.