Sugar-1-kinase with a strict substrate specificity for D-glucuronic acid and ATP. Involved in the biosynthesis of UDP-glucuronic acid (UDP-GlcA), providing nucleotide sugars for cell-wall polymers. May be also involved in a salvage pathway for glucuronic acid. ATP + D-glucuronate = 1-phospho-alpha-D-glucuronate + ADP + H(+) Magnesium. Can also use other divalent cations like manganese or cobalt. Optimum pH is 7.5. Optimum temperature is 35 degrees Celsius. Highly expressed in pollen. Detected in seedlings, inflorescences, seeds, leaves and roots. Belongs to the GHMP kinase family.