Which is not a function of lipids?

Lipids play various crucial roles in biological systems, which include energy storage, cell signaling, and providing structural support to cell membranes and other biological structures. However, the storage of genetic information is primarily the function of nucleic acids, such as DNA and RNA.

While lipids can provide energy and support for cell membranes, as well as participate in signaling pathways (like hormones), they do not store information in the way that genetic material does. Therefore, the correct identification of information storage as not being a function of lipids highlights the distinction between the roles of different macromolecules in cells.