The enzyme sabinene-hydrate synthase (EC 4.2.3.11) catalyzes the chemical reaction
This enzyme belongs to the family of lyases, specifically those carbon-oxygen lyases acting on phosphates. The systematic name of this enzyme class is geranyl-diphosphate diphosphate-lyase (cyclizing, sabinene-hydrate-forming). This enzyme is also called sabinene hydrate cyclase. This enzyme participates in monoterpenoid biosynthesis.