Enables signaling receptor binding activity. Involved in several processes, including mRNA transport; negative regulation of cysteine-type endopeptidase activity; and regulation of intracellular mRNA localization. Located in several cellular components, including neuronal cell body; neuronal ribonucleoprotein granule; and postsynaptic density. Used to study Huntington's disease. Biomarker of transient cerebral ischemia. Human ortholog(s) of this gene implicated in Huntington's disease and Parkinson's disease. Orthologous to human HTT (huntingtin). [provided by Alliance of Genome Resources, Apr 2022]