Predicted to enable isopentenyl-diphosphate delta-isomerase activity. Acts upstream of or within negative regulation of cholesterol biosynthetic process. Predicted to be located in peroxisome. Predicted to be active in cytoplasm. Orthologous to human IDI2 (isopentenyl-diphosphate delta isomerase 2). [provided by Alliance of Genome Resources, Apr 2022]