The function of POLR1F (RNA polymerase I subunit F, ENSG00000105849) is as follows. Component of RNA polymerase I (Pol I), a DNA-dependent RNA polymerase which synthesizes ribosomal RNA precursors using the four ribonucleoside triphosphates as substrates. Through its association with RRN3/TIF-IA may be involved in recruitment of Pol I to rDNA promoters. {ECO:0000269|PubMed:34671025, ECO:0000269|PubMed:34887565, ECO:0000269|PubMed:36271492}.