Possible function in spermatogenesis. Enhances the degradation of MDM2 and increases the amount of p53 probably by modulating the nucleocytoplasmic transport. Interacts with TMPO-Beta, TSG101 and TFDP2. Interacts with EMD (By similarity). Ubiquitously expressed at low levels throughout development and in adult tissues. Highest levels in pachytene and diplotene stage spermatocytes and primordial germ cells of the male and the female.