A0A3B6NKR6 contains GHMP kinase N-terminal, C-terminal, and glucuronokinase-like domains, and is most plausibly annotated as a putative glucuronokinase involved in UDP-glucuronic acid biosynthesis via the myo-inositol oxidation pathway.

The myo-inositol oxidation pathway operates in the cytosol: myo-inositol is converted to D-glucuronic acid (via MIOX), then to D-glucuronate-1-phosphate (via glucuronokinase), then to UDP-glucuronic acid. This pathway provides metabolic flexibility as an alternative to the UDP-glucose dehydrogenase route.

The closest characterized ortholog identified by phmmer is Arabidopsis GLAK2 (Q9LY82, probable glucuronokinase 2, EC 2.7.1.43), sharing the same GHMP kinase domain architecture and glucuronokinase-like family membership.