Predicted to enable tubulin binding activity and tubulin-glutamic acid ligase activity. Predicted to be involved in microtubule cytoskeleton organization and protein polyglutamylation. Predicted to act upstream of or within several processes, including cerebellar Purkinje cell differentiation; mucociliary clearance; and regulation of blastocyst development. Predicted to be located in ciliary basal body. Predicted to be active in cilium. Orthologous to human TTLL1 (tubulin tyrosine ligase like 1). [provided by Alliance of Genome Resources, Apr 2022]