Predicted to enable mRNA binding activity and protein N-terminus binding activity. Involved in lens fiber cell differentiation; lens morphogenesis in camera-type eye; and spermatogenesis. Acts upstream of or within germ cell development. Located in P granule and chromatoid body. Part of ribonucleoprotein complex. Is expressed in several structures, including central nervous system; olfactory epithelium; retina; and seminiferous tubule. Human ortholog(s) of this gene implicated in cataract 36. Orthologous to human TDRD7 (tudor domain containing 7). [provided by Alliance of Genome Resources, Apr 2022]