D-(+)-Glyceraldehyde is an intermediate in carbohydrate metabolism. It is phosphorylated by triose kinase to produce D-glyceraldehyde 3-phosphate, an intermediate in glycolysis, gluconeogenesis, photosynthesis, and other metabolic pathways.[1][2][3]

Reference:
[1]. Ronimus, R.S., and Morgan, H.W. Distribution and phylogenies of enzymes of the Embden-Meyerhof-Parnas pathway from archaea and hyperthermophilic bacteria support a gluconeogenic origin of metabolism. Archaea 1(3), 199-221 (2003).
[2]. Sullivan, D.T., MacIntyre, R., Fuda, N., et al. Analysis of glycolytic enzyme co-localization in Drosophila flight muscle. Journal of Experimental Biology 206, 2031-2038 (2003).
[3]. Wolosiuk, R.A., Ballicora, M.A., and Hagelin, K. The reductive pentose phosphate cycle for photosynthetic CO2 assimilation: Enzyme modulation. FASEB J. 7, 622-637 (1993).