E3 ubiquitin-protein ligase that is essential for proper development of the forebrain, the eye, and the face (By similarity). Negatively regulates nitric oxide production by inducing nitric oxide synthase translocation to actin cytoskeleton and inhibiting its enzymatic activity (By similarity). S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L-cysteine + [acceptor protein]-L-lysine = [E2 ubiquitin-conjugating enzyme]-L-cysteine + N(6)-ubiquitinyl-[acceptor protein]-L-lysine. Translocates from nucleus to cytoplasm in the G2 phase of the cell cycle. Belongs to the NOSIP family.