The function of ARMH4 (armadillo like helical domain containing 4, Ensembl gene identifier ENSG00000139971) is as follows. May modulate immune response and may play a role in inflammation (PubMed:36649229). Down-modulates STAT3 signaling throught direct interaction with IL6ST, resulting in the inhibition of phosphorylation of STAT3 at 'Tyr-705' (PubMed:26927669). May negatively regulates AKT signaling by modulating the activity of mTORC2 complex through RICTOR interaction (By similarity). {ECO:0000250|UniProtKB:Q8BT18, ECO:0000269|PubMed:26927669, ECO:0000269|PubMed:36649229}.