ent-Pimara-8(14),15-diene synthase is an enzyme with systematic name ent-copalyl-diphosphate diphosphate-lyase [ent-pimara-8(14),15-diene-forming]. This enzyme catalyses the following chemical reactionent-copalyl diphosphate ent-pimara-8(14),15-diene + diphosphate