The enzyme ñ,ñ-phosphotrehalase () catalyzes the following chemical reaction:
This enzyme belongs to the family of hydrolases, specifically those glycosidases that hydrolyse O- and S-glycosyl compounds. The systematic name of this enzyme class is ñ,ñ-trehalose-6-phosphate phosphoglucohydrolase. This enzyme is also called phosphotrehalase. This enzyme participates in starch and sucrose metabolism.