RNF39 and colorectal neoplasm: Integrated analyses of TCGA‐COAD and multiple GEO cohorts reveal that RNF39 is consistently upregulated in colorectal tumours and correlates with adverse clinicopathologic features and poor prognosis; these convergent transcriptomic observations, together with immunohistochemical validation, provide the rationale to prioritize RNF39 for mechanistic interrogation among RING E3 ligases.