Required for 60S pre-ribosomal subunits export to the cytoplasm. Highly expressed in testis, kidney, spleen, brain and fetal tissues. Also expressed at lower level in heart, lung, liver, small intestine, ovary, uterus, mammary gland and placenta. Variations in SDAD1 may be a cause of susceptibility to seasonal allergic rhinitis (SAR). SAR is a common allergic disorder characterized by episodes of sneezing, rhinorrhea, and swelling of the nasal mucosa. DAZL and PUM2 bind its 3'-UTR mRNA, suggesting that these proteins may regulate its translation. Belongs to the SDA1 family. Contaminating sequence. Potential poly-A sequence. Truncated N-terminus. Truncated N-terminus.