Predicted to enable ubiquitin-protein transferase activity. Acts upstream of or within negative regulation of cell morphogenesis involved in differentiation and negative regulation of neuron differentiation. Located in vacuole. Is expressed in several structures, including alimentary system; genitourinary system; integumental system; nervous system; and sensory organ. Orthologous to human TTC3 (tetratricopeptide repeat domain 3). [provided by Alliance of Genome Resources, Apr 2022]