Based on limited published evidence, QNG1 (Q-nucleotide N-glycosidase 1) catalyzes hydrolysis of queuosine 5'-phosphate to release queuine, enabling salvage of this micronutrient from dietary and bacterial sources 1. QNG1 is essential for incorporating queuine into tRNA at the wobble position (position 34), which supports translational fidelity 2. The enzyme displays specificity for queuine base hydrolysis and is highly expressed in liver tissue. QNG1 participates in both initial queuine salvage and recycling of endogenous tRNA-bound queuosine, linking it to metabolic and cellular regulation processes 1.