label: geranylfarnesyl diphosphate synthase activity
label_lc: geranylfarnesyl diphosphate synthase activity
description: "Catalysis of the reaction: (2E,6E,10E)-geranylgeranyl diphosphate + isopentenyl diphosphate = (2E,6E,10E,14E)-geranylfarnesyl diphosphate + diphosphate."