The function of WDR6 (WD repeat domain 6, Ensembl gene identifier ENSG00000178252) is as follows. Together with methyltransferase FTSJ1, methylates the 2'-O- ribose of nucleotides at position 34 of the tRNA anticodon loop of substrate tRNAs (PubMed:32558197, PubMed:33771871). Required for the correct positioning of the substrate tRNA for methylation (PubMed:32558197). Required to suppress amino acid starvation-induced autophagy (PubMed:22354037). Enhances the STK11/LKB1-induced cell growth suppression activity (PubMed:17216128). {ECO:0000269|PubMed:17216128, ECO:0000269|PubMed:22354037, ECO:0000269|PubMed:32558197, ECO:0000269|PubMed:33771871}.