5,10-メチレンテトラヒドロメタノプテリンレダクターゼ
組織名は5-methyltetrahydromethanopterin:coenzyme-F420 oxidoreductaseで、別名に5,10-methylenetetrahydromethanopterin cyclohydrolase、"N" ,"N" -methylenetetrahydromethanopterin reductase、methylene-H4MPT reductase、coenzyme F420-dependent "N" ,"N" -methenyltetrahydromethanopterin