What does the Access Policy (APM) license include for an LTM only box on v12.1.2?

We recently started upgrading LTM only licensed boxes from 11.6.x to version 12.1.2. After booting up the boxes on v12.1.2 we noticed that Access Policy (APM) shows as a licensed module. On v11.6.x we would see only LTM and AVR as licensed, along with GTM(for DNS Express which was deprecated on v12.x). On v12.1.2 we see LTM, AVR, iRulesLX and APM as licensed, along with AAM as a limited license.

Which brings up the question: What can/can't you do with APM if you provision it on an LTM only box?