Binds to actin and affects the structure of the cytoskeleton. At high concentrations inhibits spontaneous rabbit actin nucleation. This strongly suggests this archaea has a profilin-regulated actin system, and actin-type genes can be identified in this organism. It is not clear if Loki profilins 1, 2 and 3 are from the same strain. Belongs to the Asgard profilin family.