Enables dodecenoyl-CoA delta-isomerase activity. Predicted to be involved in fatty acid beta-oxidation. Located in mitochondrion and peroxisome. Is expressed in several structures, including alimentary system; brain; genitourinary system; respiratory system; and sensory organ. Orthologous to human ECI2 (enoyl-CoA delta isomerase 2). [provided by Alliance of Genome Resources, Apr 2022]