The central location for information relating to REF 2021 is on Surreynet.
The specific processes relevant to you as an ECR are about Staff Circumstances (form to be submitted by 2nd Dec 2019) and Establishing Research Independence (you will be individually invited to complete this).
RDP are running a REF Cafe event, where you can drop-in and ask any questions you might have or find out more about the processes involved, on Wed 20th Nov 3pm-4pm in the Doctoral College Training Room on Level 5 of the Library.
There are also a number of more general staff drop-ins.