methenyltetrahydromethanopterin cyclohydrolase activity
Catalysis of the reaction: 5,10-methenyl-5,6,7,8-tetrahydromethanopterin + H2O = N(5)-formyl-5,6,7,8-tetrahydromethanopterin + H+.
GO:0019238
cyclohydrolase activity
is_a
5,10-methenyltetrahydromethanopterin 10-hydrolase (decyclizing)
related
5,10-methenyltetrahydromethanopterin cyclohydrolase activity
related
N5,N10-methenyltetrahydromethanopterin cyclohydrolase activity
related
methenyl-H(4)MPT cyclohydrolase activity
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methenyl-H4MPT cyclohydrolase activity
related