Predicted to enable isopentenyl-diphosphate delta-isomerase activity; magnesium ion binding activity; and manganese ion binding activity. Acts upstream of or within response to stilbenoid. Located in mitochondrion. Is expressed in several structures, including alimentary system; genitourinary system; integumental system; nervous system; and sensory organ. Orthologous to human IDI1 (isopentenyl-diphosphate delta isomerase 1). [provided by Alliance of Genome Resources, Apr 2022]