May play a role in regulating cellular proliferation in both germline and somatic tissues. In contrast to other GTP-binding proteins, this family is characterized by a circular permutation of the GTPase motifs described by a G4-G1-G3 pattern. RNAi-mediated knockdown results in a reduced body length (PubMed:18635357). This phenotype in suppressed in a ced-4 n1162 mutant background (PubMed:18635357). Belongs to the TRAFAC class YlqF/YawG GTPase family.