There is no single and simple answer to the question, unless it is "no". Freezing point depression is proportional to concentration (molality) of the dissolved substances. Molality of insoluble substance is always zero, hence change in freezing point is also zero. But very fine suspensions or colloidal solutions - which are in a way borderline between solution and not-a-solution - may have specific properties different from properties of "normal" solutions. In most cases effects will be probably neglectable, so I would stick with "no" as a first approximation.