SLC35F1 (Solute Carrier Family 35 Member F1) is a gene that encodes a protein involved in transporting nucleotide sugars across cellular membranes. These sugars are essential for glycosylation — a key process that modifies proteins, affecting their folding, stability, and function. By supporting proper glycosylation, SLC35F1 plays a vital role in maintaining cellular function, immune response, and potentially influencing disease processes like cancer.