Term Name:	DNA (6-4) photolyase activity
Synonyms:
Definition:	Catalysis of the reaction: pyrimidine-pyrimidone (6-4) photoproduct (in DNA) = 2 pyrimidine residues (in DNA). Catalyzes the reactivation of ultraviolet-irradiated DNA.
Ontology:	GO: Molecular Function [GO:0003914]    QuickGO    AmiGO