The present invention relates to glycerol-3-phosphate acyltransferases, polynucleotides encoding the same, etc. The present invention provides a polynucleotide comprising the nucleotide sequence of, e.g., SEQ ID NO: 1 or 4, a polynucleotide encoding a protein consisting of the amino acid sequence of SEQ ID NO: 2, an expression vector and transformant comprising the polynucleotide, a method for producing food, etc. using the transformant, food, etc. produced by the method, and so on.
