May have a photoreceptor function. Binds ss- and ds-DNA in a sequence non-specific manner. Has a photolyase activity specific for cyclobutane pyrimidine dimers in ssDNA. Binds 1 FAD per subunit. Binds 1 5,10-methenyltetrahydrofolate (MTHF) per subunit. Homodimer. 5,10-methenyltetrahydrofolate (MTHF) acts as a functional antenna for the photoreduction of FAD. Belongs to the DNA photolyase class-1 family. Truncated N-terminus.