FOLH1 (Folate Hydrolase 1), also known as Prostate-Specific Membrane Antigen (PSMA), is pivotal in folate metabolism, facilitating the conversion of folate to its bioactive forms. This enzyme's action is crucial for DNA synthesis and repair, impacting cell division and growth. FOLH1's expression, particularly in prostate cancer cells, makes it a target for cancer diagnostics and therapeutics. Understanding its function offers potential pathways for treating cancer and addressing folate-related metabolic disorders....