Yes. In Jainism, a person’s birth caste does not prevent them from becoming a follower of Jain Dharma. Anyone who sincerely accepts Ahimsa, Satya, Asteya, Brahmacharya, and Aparigraha, and follows the Jain path with श्रद्धा and discipline, can be a Jain follower.

In Jain tradition, what matters most is:

• right faith,
• right knowledge,
• right conduct,
• and a sincere effort to reduce हिंसा, attachment, and passions.

So if you are a Brahmin, you can still follow Jainism fully. Jain Dharma judges a person by conduct and inner purity, not by birth.

If you wish, I can also explain the difference between being a Jain follower and becoming a formal Jain dīkshit monk/ascetic in Jainism.