Converts 3,5-dienoyl-CoAs to the corresponding 2,4-dienoyl-CoAs. Involved in degradation of unsaturated fatty acids. a (3E,5Z)-dienoyl-CoA = a (2E,4E)-(5,6-saturated)-dienoyl-CoA Lipid metabolism; fatty acid beta-oxidation. Expressed in roots, leaves, stems and flowers. Belongs to the enoyl-CoA hydratase/isomerase family.