May play a role in cell proliferation by promoting progression into S phase. (Microbial infection) Promotes human herpes simplex virus 1/HHV-1 proliferation. (Microbial infection) Interacts with herpes simplex virus 1/HHV-1 protein CVC2/UL25. Upon HHV-1 infection, accumulates arround the nuclear membrane and translocates into the nucleus. Up-regulated upon HHV-1 infection.