Predicted to enable mRNA binding activity. Involved in determination of adult lifespan; nematode larval development; and response to stress. Located in cytoplasmic stress granule and nucleus. Expressed in several structures, including mechanosensory neurons. Human ortholog(s) of this gene implicated in amyotrophic lateral sclerosis type 26. Is an ortholog of human TIA1 (TIA1 cytotoxic granule associated RNA binding protein) and TIAL1 (TIA1 cytotoxic granule associated RNA binding protein like 1).