May be involved in spermatogenesis. Interacts with isoform 1 of GGN. Associated with vesicular structures. Testis-specific. Abundantly expressed during spermatogenesis. Not detected in newborn animals, in which spermatogenesis has not yet progressed beyond the earliest stages. By dioxin (2,3,7,8-Tetrachlorodibenzo-p-dioxin). Contaminating sequence. Potential poly-A sequence.