Term Name:	15-cis-phytoene synthase activity
Synonyms:	geranylgeranyl-diphosphate geranylgeranyltransferase activity, geranylgeranyl-diphosphate:geranylgeranyl-diphosphate geranylgeranyltransferase (15-cis-phytoene-forming) activity, phytoene synthase activity
Definition:	Catalysis of the reaction: 2 geranylgeranyl diphosphate = 15-cis-phytoene + 2 diphosphate.
Ontology:	GO: Molecular Function [GO:0046905]    QuickGO    AmiGO