Yes, but the (dwarf) planet would then need some mechanism to keep the internal temperatures up, for example Europa and Enceladus have massive planets that keep their interiors warm with tidal forces, or the Pluto-Charon (practically binary) system where both bodies are very near in terms of size/mass and keep themselves warm that way.

Ceres doesn't have any companion to help in that regards, but hints of cryovolcanism have been detected (emission of water vapor on several spots), so at least _some_ internal temperature is driving volcanic processes.

Still, this isn't really my area and you should definitely consider what a planetary scientist has to say, should one chime in to this conversation.