This enzyme belongs to the family of isomerases, specifically those intramolecular oxidoreductases transposing C=C bonds. The systematic name of this enzyme class is methylitaconate Delta2-Delta3-isomerase. This enzyme is also called methylitaconate isomerase. This enzyme participates in c5-branched dibasic acid metabolism.
Kung HF, Stadtman TC (1971). "Nicotinic acid metabolism. VI. Purification and properties of alpha-methyleneglutarate mutase (B 12-dependent) and methylitaconate isomerase". J. Biol. Chem.246 (10): 3378–88. PMID5574401.