Enables GTP binding activity. Predicted to be involved in several processes, including positive regulation of nitrogen compound metabolic process; positive regulation of protein localization to chromosome, telomeric region; and stem cell division. Located in nucleolus and nucleoplasm. Is expressed in several structures, including alimentary system; brain ventricular layer; liver lobe; lung; and metencephalon rest of alar plate marginal layer. Orthologous to human GNL3 (G protein nucleolar 3). [provided by Alliance of Genome Resources, Apr 2022]