Term Name:	4-carboxymethyl-4-methylbutenolide mutase activity
Synonyms:	4-carboxymethyl-4-methylbut-2-en-1,4-olide methylmutase activity, 4-methyl-2-enelactone isomerase activity, 4-methyl-2-enelactone methyl-isomerase activity, 4-methyl-3-enelactone methyl isomerase activity, 4-methylmuconolactone methylisomerase activity
Definition:	Catalysis of the reaction: 4-carboxymethyl-4-methylbut-2-en-1,4-olide = 4-carboxymethyl-3-methylbut-2-en-1,4-olide.
Ontology:	GO: Molecular Function [GO:0047469]    QuickGO    AmiGO