The function of ENSG00000133316 (WDR74, WD repeat domain 74) is as follows. Regulatory protein of the MTREX-exosome complex involved in the synthesis of the 60S ribosomal subunit (PubMed:26456651). Participates in an early cleavage of the pre-rRNA processing pathway in cooperation with NVL (PubMed:29107693). Required for blastocyst formation, is necessary for RNA transcription, processing and/or stability during preimplantation development (By similarity). {ECO:0000250|UniProtKB:Q8VCG3, ECO:0000269|PubMed:26456651, ECO:0000269|PubMed:29107693}.