GO:0005789; C:endoplasmic reticulum membrane; IEA:Compara.
GO:0016021; C:integral to membrane; IEA:UniProtKB-KW.
GO:0016020; C:membrane; IDA:MGI.
GO:0016529; C:sarcoplasmic reticulum; IDA:MGI.
GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
GO:0005388; F:calcium-transporting ATPase activity; IDA:MGI.
GO:0046872; F:metal ion binding; IEA:InterPro.
GO:0006874; P:cellular calcium ion homeostasis; IDA:MGI.
GO:0006984; P:ER-nucleus signaling pathway; IMP:MGI.
GO:0045822; P:negative regulation of heart contraction; IGI:MGI.
GO:0006937; P:regulation of muscle contraction; TAS:MGI.
GO:0002026; P:regulation of the force of heart contraction; IGI:MGI.