GTPase required for the XPO1/CRM1-mediated nuclear export of the 60S ribosomal subunit. Probably acts by mediating the release of NMD3 from the 60S ribosomal subunit after export into the cytoplasm (Probable).
Subcellular locations: Cytoplasm, Endoplasmic reticulum, Nucleus, Cajal body
Shuttles between the Cajal bodies in the nucleus and the endoplasmic reticulum.