Rabjohn progressed through the Birmingham City academy up to under-16 level.[3] Ahead of the 2020–21 season, she moved to Second City derby rivals Aston Villa as a student athlete, undertaking a BTEC course at Sutton Coldfield College at the same time. She was named Sportswoman of the Year at the college's student athlete awards in 2022.[4]
On 17 November 2021, Rabjohn made her senior first-team debut starting and playing the entire 90 minutes of a 2–1 away defeat to Sheffield United in the FA Women's League Cup group stage.[5] She was an unused substitute for the team's final three WSL games of the 2021–22 season.
On 3 May 2023, it was announced Rabjohn had signed a pre-contract agreement with Manchester United, formally joining the club at the end of the season although she began training with the team immediately.[7]