DNA helicase that plays a role in DNA damage repair and genome stability (By similarity). Exhibits a magnesium- and ATP-dependent DNA-helicase activity that unwinds single- and double-stranded DNA in a 3'-5' direction (By similarity). Plays a role in restoring regressed replication forks (By similarity). Required to restart stalled replication forks induced by abortive topoisomerase 1 and 2 lesions (By similarity). May play a role in the repair of DNA that is damaged by ultraviolet light or other mutagens (By similarity).
Subcellular locations: Nucleus