Required for the quantitative accumulation of H/ACA ribonucleoproteins (RNPs), including telomerase, probably through the stabilization of DKC1, from the time of its synthesis until its association with NOP10, NHP2, and NAF1 at the nascent H/ACA RNA. . This is the function of ENSG00000144736 (SHQ1, SHQ1, H/ACA ribonucleoprotein assembly factor).