GTPase that associates with pre-60S ribosomal subunits in the nucleolus and is required for their nuclear export and maturation . May promote cell proliferation possibly by increasing p53/TP53 protein levels, and consequently those of its downstream product CDKN1A/p21, and decreasing RPL23A protein levels .
Subcellular locations: Nucleus, Nucleolus
Widely expressed, with the highest expression level in testis.