Apoptosis-inducing protein that modulates the tumor suppressor function of CDKN2A/p14ARF. Enhances the stability of CDKN2A/p14ARF protein by protecting it from degradation. May act as a tumor suppressor .
Subcellular locations: Nucleus, Nucleolus
Colocalizes with CDKN2A/p14ARF in the nucleolus.
Widely expressed.