RNA-binding protein, which is essential for gametogenesis in both males and females. Plays a central role during spermatogenesis. Acts by binding to the 3'-UTR of mRNA, specifically recognizing GUU triplets, and thereby regulating the translation of key transcripts (By similarity). Homodimer and heterodimer. Multiple DAZL RRMs can bind to a single RNA containing multiple GUU triplets (By similarity). Forms a heterodimer with DAZ. Interacts with BOLL, DAZAP1 and DAZAP2. Interacts with PUM2. Predominantly cytoplasmic. Nuclear in spermatogonia until near the end of the meiotic prophase and cytoplasmic localization from then onward. Testis specific. The DAZ domain mediates the interaction with DAZAP1 and DAZAP2. Belongs to the RRM DAZ family.