Using CRM_ORDER_READ Function Module in CRM

I need to get transaction number from CRM Business Transaction number to get the quotation date. I have to use Transaction number in Program CRM_ORDER_READ which will provide GUID and Quotation date. How I can pass Transaction number in FM CRM_ORDER_READ? I know that there is also a FM CRM_ORDER_ID but I am not sure about import parameter Transaction number.

Anyone can help on this?