(b) When all assets justifying the expense of collection and distribution have been marshaled and distributed under this article, the liquidator shall petition the circuit court to terminate the liquidation proceeding and to close the estate and for other relief as may be appropriate. Subject to approval of the circuit court, after the completion of all post-closure activities for which moneys were reserved, the liquidator is authorized to deposit any remaining assets reserved for administrative expenses incurred in the closing of the estate that may not be practicably or economically distributed to claimants into a segregated account to be known as the closed estate fund account. The commissioner may thereafter use moneys held in the account to fund the administrative expenses of proceedings against insurers subject to this article that lack sufficient assets to fund administration.